Can you think of any three-dimensional shape that comprises of exactly two surfaces?

In the image below, can you find the value of an angle(y)

What jumps when it walks and sits when it stands?

A dying old man wants to divide his entire land between his only two sons. Since his only wish is to treat them as equal as both of them have been too good to him, he wants to divide his land equally between them. The problem is that the land is significantly irregular in shape and thus there is no choice of cutting them into two equal halves.

Can you help him divide the land in a manner that both of his sons will be happy?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

How do you go from 98 to 720 using just one letter?

What kind of band never plays music?

Why are televisions attracted to people?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?